How long is the storage unit

This is Pythagorean theorem

9 meters

Step-by-step explanation:

We know the hypotenuse is 15 and one leg is 12

a^2 + b^2 = c^2  where c is the hypotenuse and a and b are the legs

12^2 + b^2 = 15^2

144 + b^2 = 225

Subtract 144 from each side

144-144 +b^2 = 225 -144

b^2 = 81

Take the square root of each side

sqrt(b^2) = sqrt(81)

b = 9

i say b hope this jdjdjdj

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is